Printing-press.



G. B. McCOR MACK. PRINTING PRESS.

APPLICATION FILED OCT. 31, 1916.

1 ,2? 5, I Patented Aug. 13, 1918.

4 SHEETSSHEET I- INVENTOR WITNESSES:

ATTORNEYS m: uonms' r srsns co.. Pnoruuma" wnsmnnwm a c.

e. B McCORMACK.

- PRINTING PRESS. I APPLlCATl0N FlLEb OCT. 31. I916.

Patented A110". 13, 1918- 4 SHEETSSHEET 2. 17

IN VENTQR WITNESSES:

AmoRNmxrs rm: NGRRI! PETERS m. PNom-Lrrym wAsmucmn. o c.

G.B.MCCORMACK.

PRlN'TING PRESS.

APPLICATION FILED OCT. 31. 1916.

1,275,281. I fPatentedAu 13,1918,

. 4SHEETS-SHEET 3.

W [TN ESSES flea/ ye fiMCarmack BY g jfwwid G. B. McCORMACK PRINTINGPRESS.

APFLlCATION FILED 0CT,31,1916.

1,275,281 Patented Aug. 13, 1918.

4 SHEETS-SHEET 4.

WITNESSES: IN VENTOR 2960776 Z1110 'omaek ATTORNEYS ms Mowers PFYERS m.PNO70-LITHO.. WASHINGYDN. n. 1:.

ashowing the slots-19.

GEORGE B. MocoEMAcK, or JERSEY c'ITY, LNEW JEEsEY.

I To all whom it may concern:

Beit known thatI,' GEORGE B. M06611 which: the following 5 is aspecification.

This invention relates to a printingpres's.

provide a simple;- cheaply manufactured,"

high'speed press, and particularly to pro- A vide a novel type bed andplaten movement.

Further obj ects will hereinafter'appear. Theihventioncon'sists of theparts and? the construction and combination of "partsas hereinafter morefully described and claimed, having refereiiceto theaccoinpanly ingdrawings 1nwh1ch:f

Figure '1 isa side elevation of the press partly brokenaway andlIlSGClZlOIlN-u' -1 Fig.2 is --a detailed view of tli'e cylinderplaten;- partly'in Section showing the posi -%:botto1n of the'type bed18 whilethe lower I tion of the paper grippers; r v Fig. 3 is anlend'viewof thepress; Figdis a side elevation partlyv in'section showingthe arrangement of the inking roll-r eI' Fig. 5 is a' plan view-ofthepress.- 7 1 Fig. 6 is across sectionon line-VIVI-- "Fig. 5, showingtheinkingrollers and cyl- I inder platen removed. l a n 'Fig; 7"is'adetailed view partlyin' section" showin anism.

Fig. s is" alongitudinal'sectionof' the type bed showing the positionof-therollers'and" the guide channel formed inthe;'bed-plate ofthepress. .i I

F igl' 9 is a partialplan-vievv of thegea'rS,

Referring to the dea-st in detail, A

indicates themain frameiof the I press upon Y which is; supportedabedplate 2a Formed in the upper surface ofthebed plateis a? V I shown:by'dotted lines at'18 see'Fig. 5. A

type bed to straighten out as it enters the-= channelwl orf-whil'e itpasses 'intoengagecontinuousendless'channel consisting of two straightparallelside-sections 3-:and-4-and a i pair of curved 'connectingendsections q and 6."

ball bearings 9 8 carriedby a; circular 'groove 10 formed in' the topsurface'of theqbed PRIiVTDTG-PRESSQ I Specification of letters Patent,

tation transmitted to gear 8 through the means of the slots 19 and thecontinuous :guiding"channel' consisting of the straight--' .parallelsides 3 and tand the. curved con-' and 6, that'is referg the papergripper operating mechposition of the lateral driving shaftz 12 carriedby bearing brackets 13 secured on or formed integral with mounted above.the gear 8-c'entrally with-re E lat-ion to same and extends crosswiseofthe p frameA/and the bed plate 2. Secured on The object of the presentinvention is to Patented Aug-13,1918. Application filed 0ctober81, 191s.semmb. 128,697. i T 1 f i I plate'2, and-"intenneshing with said gear is"a driving gear 11 which is secured upon a MACK, a citizen of the UnitedStates, residing at Jersey City, in the .countyof Hudsonand State of NewJ ersey, have invented newand useful Improvements in'Printing-Presses,of

the main :frame A. The driving shaft 12 is oneend of the shaft justabove the straight side ofthe channel indicated at 3,is a cylinderplaten leand'se'curedabove the. other straight side-4 of'the; channel isan inking :roller15l which is supplied with ink from 'a fountain 16 anda pair of ductor rollers 17;

edtosupport atype bed generally indicated 'The upper surface of the gear8-is planed 5 Q *ofi'to form a smooth surface which is adapt- 20througheach of which extends a pin 21.

Theupper'end of each pin is secured in the ends are provided withrollers 22 which eX- 'J'tend down into the guide channel'formedin theupper surface ofthe bed plate 2. -Rov driving shaft 12 and'gear-lltherefore causes the type bed to travel round and round, with =the'gear8, andpredetermined positions of the-type bed with relation toithecylinder platen andthe inking rollers is obtained by necting endsections 0 "ring to the planview shown in Fig.-.5,' it can be seen thatthe; pins 21 carrying the rollers while "itr'is passing under thecylinder" "'22 will cause the type bed to travel in a I "straight linein the :direction of arrow a and .typebed willcause the rollers tostrike consequently turn the type bed around: as

continued movement will again cause the the curved connecting endsection 5- and ii rnent with theinking-rQlIers; The type bed passesaround the? curvedconnecting end secis again given a turninguin'o'vementas it" themain driving shaft 12 andas the gears enters the straight sideof the channel in- A dicated at 3. V 7

From the foregoing it will be seen that the type bed will continuouslytravel in unison with the gear 8 in a continuouscircuit, and

that its movements are guided and con; trolled entirely by thecontinuous guiding" channel described. Reciprocating or intermitten'thiovements are in this manneren tirely obviated andcomparatively high speed: may therefore be obtained without racking orsubjectingthe press 'as a w'hole'to unnecessary strains.

The "simpledriving connection between the "type bed and the "main driveshaft. 12, is thus permittedfas the only connection requiredis the gear8 having the laterally: Cl1S- posed "slots 19 formed-thereintogether'with the pins 21 and rollers 22. The cylindrical platen"employed is directly secured upon 11 and- 8are driven at the ratio of2* to 1,

' when the grippers are in open positlon.

the cylinder or the slot 36 to partly turn the semi-circular plate 35andthe' attachedl'shaft 34 which carries the grippers 25, in this manneropening or closing same as the case may be. Anysuitablefeeding"mechanism may be employedfor the purpose of deliveringthe sheets'to be printed to the cylinder platin n the 'iresen'tinstancea table 40 has-been provided to which'the sheets may be delivered by anautomatic feeder or by hand. The sheet deliveredat'thispoint is engagedby the'grippers-QB and thus-wrapped about 'laten at the time when thetype bed passes-into Y engagement. I The 'impressionis in thismannertunadeandthe sheet :m'ay. consequently be released irnm'e diatelythereafter or at the pointt indicated at 41" where apluraIity ofstrippinglfingers 42 are shown." The-grippers are here autoin theannular groove-36 is so arranged-and- 3 it can readily be seen" *thatthe cylinder position-edf as to r'oclt the arm fi'l' to release" platenwill make two complete revolutions" whilet'the bed'plate completes onecycle of its continuous traveling circuit.

The 7 grippers-generally indicated at 25," see-Fig. 2, with which theplaten'is pro-r vide d, "shou-l'dtherefore be opened? and closed 1 onlyonce during each two revolutions. This is accomplished in thelfollowingmannerr the grippers, the paper received by the stripping fingers beingthen removed by the conveyer 43 :or any other! suitable '1 mecha 1 msm:r The' inking rollerfindicated at 1'5 may en gage directly with the typebedif de'siredgor a second form roller l5 'may-beprovid'ed for thepurposeof more equally-distributing Formed in the face of the gearS is acon-"the"inkE W-Whilea specific arrangementof tinuou's annular groove--26 into which: ex- I tends' the lower end of a rocker arm 27.

inking rollers 1 are here provided *'it is ob vious that anyotherflfor'migor' arrangement This rocker arm is pivotally' mou-nted'asat may be employ'ed,the real-"novelty presented 28 on an extension-29formed on the'bear-i ingbracketand its upperiend is connected with theupper end-"of a crank arm The crank arm is pivotally mounted=on the samebearing eXtension,- whileits lower endi is pivotally'connected as at 31with apair of lugs formed on a plate82. The upper end o'f the rocker arm27 is fork shaped, in this manner providing two 'pivots 28 and'similarly necessitating the provision 'of two crank arms 30 and theconnecting lugs 81. The plate 32' is slidably'mounted onthe shaft 12*andis therefore adapted to be" moved'to andawayfmm the end of the cylinderplaten when therocker-arm 27 is swung a'bout itspivots 28 by means ofthe nn" dulations' 33 formed in the'annul'ar groove 26. The grippers-25are secured upon a shaft 34J Secu-redon thesame shaft is a semi circularplate 85 in which is formed acam groove '36. Slidably mounted-in'the'platen" adj'acent isai'd se'mi circulai platen, is a bar 3226sindicated at 38. Projecting inwardly from thebarf37 is a pin 39 whichengages-*' lar'plate' 35;Sliding movement of the plate 32with?connectedfbar37 in thismanner: causes the pin' 39which"prefectsthroiigh fa cturer may dictate.

I clai-m and desire to secure by Letters Pat ent' is 1. In a printingpress, a rotatable mem ber; a shaft extending"diametrically"across themember,'"a cylinder roller and a n inking roller each mountedonsaidshaft and over the rotatable *member, a type 5 ca rryi ng bed l vV :mounted on said rotatable" memberl -and '37 which "1S directlysecured to the plate e y i i-bect will partake "of #1 Y the otary'movement of said member and will be moved relative to the member soasto move fin f 'P s' ben'eath eachef therollers'f A v I V V V 2- printing13 335: a r tatabl g a type carrier 'thereon;a hafta i diametricallyacross the gear, a pinion on In testimony whereof I have hereunto setthe shaft meshing with the gear to drive my hand in the presence of twosubscrib- 10 the latter, a cylinder roller and an inking ing witnesses.

J roller each mounted on said shaft so as to GEORGE B. M CCORMACK bedriven by said pinion, and means whereby said carrier will be moved soas to travel Witnesses:

in straight paths beneath each of said roll- CHAS. A. MIRREAN, ers. C.E. FELTIS.

Copies of this patent may be obtained for flve cents each, by addressingthe "Commissioner of Patents.

Washington, D. 0."

